@article{MAN_1910__69_158467,
     author = {K. Knopp},
     title = {Nichtfortsetzbare {Dirichletsche} {Reihen}},
     journal = {Mathematische Annalen},
     pages = {284--288},
     publisher = {mathdoc},
     volume = {69},
     year = {1910},
     zbl = {41.0293.01},
     url = {http://geodesic.mathdoc.fr/item/MAN_1910__69_158467/}
}